HomeMy WebLinkAboutORD1056ORDINANCE NO. 1056
AN ORDINANCE OF THE MAYOR AND CITY COUNCIL OF THE CITY OF APACHE
JUNCTION,ARIZONA,ADOPTING BY REFERENCE THAT CERTAIN DOCUMENT
ENTITLED "1997 UNIFORM BUILDING CODE, AMENDED APPENDIX CHAPTER 33,
EXCAVATION AND GRADING",PURSUANT TO ARIZONA REVISED STATUTES
ANNOTATED ("A.R.S.")SECTION 9-802;AND AMENDING THE APACHE
JUNCTION CITY CODE, CHAPTER 7 BUILDING,ARTICLE 7-1 BUILDING CODES
AND CONSTRUCTION STANDARDS BY ADDING NEW SECTION 7-1-10,EXCAVATION
AND GRADING;REPEALING ANY CONFLICTING PROVISIONS; PROVIDING FOR
SEVERABILITY; PROVIDING FOR PENALTIES; AND DECLARING AN EMERGENCY.
SECTION I IN GENERAL
That Apache Junction City Code Chapter 7 Building,Article 7-1
Building Codes and Construction Standards,Section 7-1-10
Excavation and Grading be amended to read as follows:
That certain document entitled "1997 Uniform Building Code, Amended
Appendix Chapter 33, Excavation and Grading" three copies of which
are on file in the Office of the City Clerk of the City of Apache
Junction, Arizona, and which was made a public record by Resolution
98-30, is hereby referred to, adopted and made a part hereof as if
fully set out in this Ordinance, and as authorized by A.R.S. §9-
802.
SECTION II REPEALING ANY CONFLICTING PROVISIONS
All ordinances and parts of ordinances in conflict with the
provisions of this ordinance or any part of the code adopted herein
by reference are hereby repealed.
SECTION III PROVIDING FOR SEVERABILITY
If any section, subsection, sentence, phrase, clause or portion of
this ordinance or any part of the Code adopted herein by reference
is for any reason held to be invalid or unconstitutional by any
court of competent jurisdiction, such decision shall not affect the
validity of the remaining portions thereof.
SECTION IV PENALTY
Any violation of Apache Junction City Code, Chapter 7 Buildina,
Article 7-1 Building Codes and Construction Standards,is
punishable pursuant to Apache Junction City Code Chapter 1 General,
Article 1-8(A).
ORDINANCE 1056
RAGE ONE OF TWO
SECTION V EMERGENCY CLAUSE
It being necessary for the preservation of the peace, health and
safety of the City of Apache Junction, Arizona, that this ordinance
become effective immediately, an emergency is declared to exist and
this ordinance shall be effective immediately upon its passage and
adoption.
PASSED AND ADOPTED BY THE MAYOR AND CITY COUNCIL OF THE CITY OF
APACHE JUNCTION, ARIZONA, THIS 19TH DAY OF OCTOBER , 1998
SIGNED AND ATTESTED TO THIS 19TH DAY OF
ATTEST:
72d7tie,„_ 67
KATHLEEN CONNELLY
City Clerk
APPROVED AS TO FORM:
/0-1998
RICHARD JOEL STERN
City Attorney
ORDINANCE 1056
PAGE TWO OF TWO
DOUGLAS/ COLEMAN
Mayor
OCTOBER , 199 8 -
1997 Uniform Building Code
Appendix Chapter 33
EXCAVATION AND GRADING
SECTION 3304- PURPOSE
The purpose of this appendix is to safeguard life,
limb, property and the public welfare by regulating
grading on private property within the jurisdictional
boundaries of the City of Apache Junction.
SECTION 3305- SCOPE
This appendix sets forth rules and regulations to
control clearing, grubbing, excavation, grading and
earthwork construction, including fills and
embankments; establishes the administrative
procedure for issuance of permits; and provides for
approval of plans and inspection of grading
construction.
The standards listed below are recognized
standards (see Sections 3503 and 3504).
1. Testing.
1.1 ASTM D 1557, Moisture -density
Relations of Soils and Soil Aggregate Mixtures
1.2 ASTM D 1556, In Place Density of
Soils by the Sand Cone Method
1.3 ASTM D 2137, In Place Density of
Soils by the Rubber Balloon Method
1.4 ASTM D 2937, In place Density of
Soils by the Drive Cylinder Method
1.5 ASTM D 2922 and D 3017, In
Place Moisture Contact and Density of Soils by
Nuclear Methods
SECTION 3306- PERMITS REQUIRED
3306.1 Permits Required. Except as specified in
Section 3306.2 of this section, no person shall do
any clearing, grubbing, excavation, or grading
without first having obtained a grading permit from
the building official or designee.
3306.2 Exempted Work. A grading permit is not
required for the following.
1.When approved by the building official
or designee, grading and/or excavation that does
not pose any danger to private or public property.
2.An excavation below finished grade for
basements and footings of a building, retaining wall
or other structure authorized by valid building
ADOPTED BY ORDINANCE NO. 1056
PAGE 1 of 10
Appendix Chapter 33
permit. This shall not exempt any fill made with the
material from such excavation or exempt any
excavation having an unsupported height *greater than
5 feet (1524 mm) after the completion of such
structure.
3.Cemetery graves.
4. Refuse disposal sites controlled by other
regulations.
5. Excavations for wells or tunnels or
utilities.
6. Mining, quarrying, excavating,
processing or stockpiling of rock, sand, gravel,
aggregate or clay where established and provided for
by law, provided such operations do not affect the
lateral support or increase the stresses in or pressure
upon any adjacent of contiguous property.
7. Exploratory excavations under the
direction of soil engineers or engineering geologists.
8.An excavation that: (1) is less than 2 feet
(610 mm) in depth and less than 50 cubic yards in
volume, (2) or not create a cut slope greater than 5
feet (1524 mm) in height and steeper than 1 unit
vertical in 1 1/2units horizontal (66.7 % slope),(3) or
does not obstruct a drainage course.
9.A less than 1 foot (305 mm) in depth
and placed on natural terrain with a slope flatter than
1 unit vertical in 5 units horizontal (20% slope), or
less than 3 feet (914 nun) in depth, not intended to
support structures, that does not exceed 50 cubic yards
(38.3 m3) on any one lot and does not obstruct a
drainage course.
10.Clearing and grubbing of a parcel which
results in an excavation that:
(1) results in the superficial disturbance of
the soil surface to a depth less than 2 inches,
is less that 7500 square feet area.
(2) does note involve a drainage course.
Exemption from the permit requirements of
this chapter shall not be deemed to grant
authorization for any work to be done in any 'Timmer
in violation of the provisions of this chapter or any
other laws or ordinances of the City of Apache
Junction, Arizona.
1997 Uniform Building Code
Excavation and Grading
Amended Appendix Chapter 33
SECTION 3307- HAZARDS
Whenever the building official or designee
determines that any existing excavation or
embankment or fill on private property has become
a hazard to life and limb, or endangers property, or
adversely affects the safety,use or stability of a
public way or drainage channel, the owner of the
property upon which the excavation or fill is
located, or other person or agent in control of said
property, upon receipt of notice in writing from the
building official or designee , shall within the
period specified therein repair or eliminate such
excavation or embankment to eliminate the hazard
and to be in conformance with the requirements of
this code.
SECTION 3308- DEFINITIONS
For the purpose of this appendix, the definitions
listed hereunder shall be construed as specified in
this section.
APPROVAL shall mean that the proposed work
or completed work conforms to this chapter in the
opinion of the building official or designee.
AS -GRADED is the extent of surface conditions
on completion of grading.
BEDROCK is in -place solid rock.
BENCH is a relatively level step excavated into
earth material on which fill is to be placed.
BORROW is earth material acquired from an
off -site location for use in grading on a site
BUILDING OFFICIAL Or designee is the
officer or other designated authority charged with
the administration and enforcement of this code, or
the building official's duly authorized
representative.
CIVIL ENGINEER is a professional engineer
registered in the state to practice in the field of civil
works.
CIVIL ENGINEERING is the application of
the knowledge of the forces of nature, principles of
mechanics and the properties of materials to the
evaluation, design and construction of civil works.
CLEARING AND GRUBBING is the cutting
down of trees; bushes, cactus and the digging and
removal of their roots and stumps.
COMPACTION is the densification of a fill by
ADOPTED BY ORDINANCE NO. 1056
PAGE 2 of 10
mechanical means.
EARTH MATERIAL is any rock, natural soil or
fill any combination thereof.
ENGINEERING GEOLOGIST is a geologist
experienced and knowledgeable in engineering
geology.
ENGINEERING GEOLOGY is the application
of geologic knowledge and principles in the
investigation and evaluation of naturally occurring
rock and soil for use in the design of civil works.
EROSION is the wearing away of the ground
surface as a result of the movement of wind, water or
ice.
EXCAVATION is the mechanical removal of
earth material.
FILL is a deposit of earth material placed by
artificial means.
GEOTECHNICAL ENGINEER See "soils
engineer."
GRADE is the vertical location of the ground
surface.
Existing Grade is the grade prior to grading.
Finish Grade is the final grade of the site that
conforms to the approved plan.
Rough Grade is the stage at which the grade
approximately conforms to the approved plan.
GRADING is any excavating or filling or
combination thereof.
KEY is a designed compacted fill placed in a
trench excavated in earth material beneath the toe of a
proposed fill slope.
PROFESSIONAL INSPECTION is the
inspection required by this code to be performed by
the civil engineer, soils engineer or engineering
geologist.Such inspections include that performed by
persons supervised by such engineers or geologists
and shall be sufficient to form an opinion relating to
the conduct of the work.
SITE is any lot or parcel of land or contiguous
combination thereof, under the same ownership,
where grading is performed or permitted.
SLOPE is an inclined ground surface the
inclination of which is expressed as a ratio of
horizontal distance to vertical distance.
SOIL is naturally occurring superficial deposits
overlying bedrock.
SOILS ENGINEER (GEOTECHNICAL
1997 Uniform Building Code
Excavation and Grading
Amended Appendix Chapter 33
ENGINEER) is an engineer experienced and
knowledgeable in the practice of soils engineering
(geotechnical) engineering.
SOIL ENGINEERING (GEOTECHNICAL
ENGINEERING) is the application of the
principles of soils mechanics in the investigation,
evaluation and design of civil works involving the
use of earth materials and the inspection or testing
of the construction thereof.
TERRACE is a relatively level step constructed
in the face of a grades slop surface for drainage and
maintenance purposes.
SECTION 3309- GRADING PERMIT
REQUIREMENTS
3309.1 Permits Required.Except as exempted in
Section 3306 of this code, no person shall do any
grading without first obtaining a grading permit
from the building official or designee.A separate
permit shall be obtained for each site, and may
cover both excavations and fills.
3309.2 Application. To obtain a permit, the
applicant shall first file an application therefor in
writing on a form furnished by the enforcement
agency for that purpose (1) The application shall
state the estimated quantities of work involved. (2)
Identify and describe the work to be covered by the
permit for which application is made. (3) Describe
the land on which the proposed work is to be done
by legal description, street address or similar
description that will readily identify and definitely
locate the proposed building or work. (4) Be
accompanied by plans, diagrams, computations and
specifications and other data as required in section
and required by the building official. (5) Be
signed by the applicant, or the applicants
authorized agent.
3309.3 Grading Designation. Grading in excess of
1,000 cubic yards (3825 m 3) shall be performed in
accordance with approved grading plan prepared by
a civil engineer, and shall be designated as
"engineered grading." Grading involving less than
1,000 cubic yards (3825 m3) shall be designated
"regular grading" unless the pennittee chooses to
ADOPTED BY ORDINANCE NO. 1056
PAGE 3 of 10
have the grading performed as engineered grading, or
the building official determines that special
conditions or unusual hazards exist, in which case
grading shall conform to the requirements for
engineered grading.
3309.4 Engineered Grading Requirements.
Applications for a grading permit shall be
accompanied by two sets of plans and specifications,
and supporting data consisting of a soils engineering
report,drainage report, and engineering geology
report.The plans and specifications shall be prepared
and signed by and individual licensed by the state to
prepare such plans or specifications when required by
the building official or designee.
Specifications shall contain information covering
construction and material requirements.
Plans shall be drawn to scale upon substantial
paper and shall be of sufficient clarity to indicate the
nature and extent of the work proposed and show in
detail that they will conform to provisions of this code
and all relevant laws, ordinances, rules and
regulations.The first sheet of each set of plans shall
give location of the work, the name and address of the
owner, and the person by whom they were prepared.
The Plans shall include the following information:
1.General vicinity of the proposed site.
2.Property limits and accurate contours of
existing ground and details of terrain and area
drainage.
3.Limiting dimensions, elevations or finish
contours to be achieved by the grading, and proposed
drainage channels and related construction.
4. Detailed plans of all surface and
subsurface drainage devices, walls, cribbing, dams
and other protective devices to be constructed with, or
as a part of, the proposed work, together with a map
showing the drainage area and the estimated runoff of
the area served by any drainage.
5.Location of any buildings or structures on
the property where the work is to be performed and
the location of any buildings or structures on land of
adjacent owners that are within 15 feet (4572 nun) of
the property or that may be affected by the proposed
grading operations.
6. Recommendations included in the soils
engineering report and the engineering geology report
shall be incorporated in the grading plans or
1997 Uniform Building Code
Excavation and Grading
Amended Appendix Chapter 33
specifications.When approved by the building
official or designee, specific recommendations
contained in the soils engineering report and the
engineering geology report, which are applicable to
grading, may be included by reference.
7.The dates of the soils engineering and
engineering geology reports together with the
names, addresses and phone numbers of the firms
or individuals who prepared the reports.
3309.5 Soils Engineering Report. The soils
engineering report required by Section 3309.4 shall
include data regarding the nature, distribution and
strength of existing soils, conclusions and
recommendations for grading procedures and
design criteria for corrective measures, including
buttress fills, when necessary, and opinion on
adequacy for the intended use of sites to be
developed by the proposed grading as affected by
soils engineering factors, including the stability of
slopes.
3309.6 Engineering Geology Report.The
engineering geology report required by Section
3309.4 shall include an adequate description of the
geology of the site, conclusions and
recommendations regarding the effect of geologic
conditions on the proposed development, and
opinion on the adequacy for the intended use of
sites to be developed by the proposed grading, as
affected by geologic factors.
3309.7 Drainage Report.Engineered grading
submittals must include a drainage report to
demonstrate, at a minimum, that the required
retention volume is provided and that off -site
drainage flows are adequately conveyed through the
site and sagely discharged downstream.See the
City of Apache Junction Engineering Guidelines for
retention and drainage requirements.
NOTE: A more detailed drainage report may be
required to address on- site drainage as part of the
improvement plan submittal process.
3309.8 Regular Grading Requirements.Each
application for a grading permit shall be
ADOPTED BY ORDINANCE NO. 1056
PAGE 4 of 10
accompanied by a plan in sufficient clarity to indicate
the nature and extent of the work.The plans shall
give the location of the work, the name of the owner
and the name of the person who prepared the plan.
The plan shall include the following information:
1.General vicinity of the proposed site.
2.Limiting dimensions and depth of cut and
fill.
3. Location of any buildings or structures
where work is to be performed, and the location of
any buildings or structures within 40 feet of the
proposed grading.
4. Location and size of any (wash or
washes).
3309.9 Protection of utilities.The developer shall
be responsible for the prevention of damage to any
public utilities or services.
3309.10 Protection of adjacent property.The
person doing or causing grading is responsible for the
prevention of damage to adjacent property.No person
shall excavate on land sufficiently close to the
property line to endanger any adjoining public street,
sidewalk, alley or other public or private property,
without supporting and protecting such property from
any damage that might result.
3309.11 Tracking of dirt onto public streets. The
developer shall provide for the adequate cleaning of
equipment to prevent the tracking of dirt and debris
into or onto the public right -of way.
3309.12 Revegetation. The loss of trees, shrubs,
cacti, ground cover, and topsoil shall be minimized on
any and all grading projects.In addition to
mechanical methods of erosion control, graded areas
shall be protected to the extent practical from damage
by erosion by planting trees, shrubs, ground cover or
an approved revegetation seed mix approved by the
City of Apache Junction Parks and Recreation
Department.Such plantings shall provide for rapid,
short-term coverage of the slopes as well as long-term
permanent coverage.A plan by a licensed landscape
architect may be required.
3309.13 Off -site Drainage flows. It shall be a
violation of this Code for any person to block or
1997 Uniform Building Code
Excavation and Grading
Amended Appendix Chapter 33
hinder the flow of existing flows that enter a site.
The engineered and regular grading submittals
shall both demonstrate that adequate conveyance is
provided for all such flows.The building Official
or designee may require detailed and hydrologic
and or hydraulic calculations to demonstrate
compliance with the requirement.
3309.14 Wildlife Habitat.The dislocation of
wildlife shall be minimized on any and all grading
and excavation projects.Areas to be graded or
excavated shall first be inventoried to determine
potential impact on wildlife and provide mitigation
measures in accordance with the requirements of
the City of Apache Junction.
3309.15 Issuance.The provisions of Section 106.4
are applicable to grading permits.The building
official or designee may require that grading
operations and project designs be modified if delays
occur which incur weather -generated problems not
considered at the time the permit was issued.
The building official or designee may require
professional inspection and testing by the soils
engineer.When the building official has cause to
believe that geologic factors may be involved, the
grading will be required to conform to engineered
grading.
SECTION 3310 GRADING FEES.
3310.1 General. Fees shall be assessed in
accordance with the provisions of this section or
shall be as set forth in the fee schedule adopted by
the jurisdiction.
3310.2 Plan Review Fees. When a plan or other data
are required to be submitted, a plan review fee shall
be paid at the time of submitting plans and
specifications for review. Said plan review fee shall be
as set forth in Table A -33-A. Separate plan review fee
shall apply to retaining walls or major drainage
structures as required in the code. For excavation and
fill on the same site, the fee shall be based on the
volume of excavation or fill, whichever is greater.
3310.3 Grading Permit Fees.A fee for each grading
permit shall be paid to the City of Apache
Junction as set forth in Table A -33-B.Separate
permits and fees shall apply to retaining walls or
major drainage structures as required elsewhere in
this code.There shall be no separate charge for
standard terrace drains and similar facilities.
50 Cubic yards (38.2 m3) or less ................................................................................................$15.00
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101 to 1,000 cubic yards (77.2 m3 to 764.6 m3) ..........................................................................$37.00
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ADOPTED BY ORDINANCE NO. 1056
PAGE 5 of 10
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1997 Uniform Building Code
Excavation and Grading
Amended Appendix Chapter 33
10,001 to 100,000 cubic yards (7646.3 m3 to 76,455 m3)----- $49.25 for the first 10,000 cubic yards (7645.5
m3), plus $24.50 for additional 10,000 cubic yards (7645.5 m3) fraction thereof
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200,001 cubic yards or more (152,912 m3) --$402.25 for the first 200,000 cubic yards (152,912 m3), plus
$7.25 for each additional 10,000 cubic yards (7645.5 m3) or fraction thereof
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50 cubic yards (38.2 m3) or less ..........................................................................................$15.00
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101 to 1,000 cubic yards (77.2 m3 to 764.6 m3)-- $37.00 for the first 100 cubic yards (76.5m3), plus $17.50
for each additional 100 cubic yards (76.5 m3) or fraction thereof
i:•;••••44gg"-ggezgging.:)..irt ,m,Q000z04.0 ,,,N•A,sA,..., ,..m,....,.•moo: •••s ;...........1..dtaA•.....o...,..,..-.1•,......-:•::..•404*.va.../.a.i.g.N*... „....i .,.....: --••: ...-...,,,..••-.....,....,...,,,i,..::::::..,...,...a.......,..ii.........,........,;•:--,....,tr4.414 „..„3 .....„., ... ,,u wriiiii
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10,001 to 100,000 cubic yards (7646.3 m3 to 76,455 m3)-- $325.00 for the first 10,000 cubic yards (7645.5
m3), plus $66.00 for each additional 10,000 cubic yards (7645.5 m3) or fraction thereof
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Other Inspections and Fees:
1.Inspections for which no fee is specifically indicated ---------------------$50.50 per hour, V2 hour
minimum charge.
SECTION 3311- BONDS
The building official or designee may require bonds
in such form and amounts, as may be deemed
necessary to ensure that the work, if not completed
ADOPTED BY ORDINANCE NO. 1056
PAGE 6 of 10
in accordance with the approval plans ans
specifications, will be corrected to eliminate
hazardous conditions.
In lieu of a surety bond the applicant may file a
1997 Uniform Building Code
Excavation and Grading
Amended Appendix Chapter 33
cash bond or instrument of credit with the building
official or designee in an amount equal to that which
would be required in the surety bond.
SECTION 3312- CUTS
3312.1 General. Unless otherwise recommended in
the approved soils engineering or engineering
geology report, cuts shall conform to the provisions
of this section.
In the absence of an approved soils engineering
report, these provisions may be waived for minor
cuts not intended to support structures.
3312.2 Slope. The slope of cut surfaces shall be no
steeper than is safe for the intended use and shall be
no steeper than 1 unit vertical in 2 unit horizontal
(50% slope) unless the perinittee furnishes a soils
engineering or an engineering geology report, or
both, stating that the site has been investigated and
giving an opinion that a cut at a steeper slope will be
stable and not create a hazard to public or private
property.
SECTION 3313- FILLS
3313.1 General. Unless otherwise recommended in
the approved soils engineering report, fills shall
conform to the provisions of this section.
In the absence of an approved soils engineering
report, these provisions may be waived for minor
fills not intended to support structures.
3313.2 Preparation of Ground. Fill slopes shall not
be constructed on natural slopes steeper than 1 unit
vertical in 2 units horizontal (50% slope).The
ground surface shall be prepared to receive fill by
removing vegetation, noncomplying fill, topsoil and
other unsuitable materials scarifying to provide a
bond with the new fill and, where slopes are steeper
than 1 unit vertical in 5 units horizontal (20% slope)
and the height is greater than 5 feet (1524 mm), by
benching into sound bedrock or other competent
material as determined by the soils engineer.The
bench under the toe of a fill on a slope steeper than 1
unit vertical in 5 units horizontal (20% slope) shall
be at least 10 feet (3048 mm) wide but the cut shall
be made before placing the fill and acceptance by the
ADOPTED BY ORDINANCE NO. 1056
PAGE 7 of 10
soils engineer or engineering geologist or both as a
suitable foundation for fill.
3313.3 Fill Material. Detrimental amounts of
organic material shall not be permitted in fills.
Except as permitted by the building official, no rock
or similar irreducible material with a maximum
dimension greater than 12 inches (305 mm) shall be
buried or placed in fills.
EXCEPTION: The building official or designee may
permit placement of larger rock when the soils
engineer properly devises a method of placement,
and continuously inspects its placement and
approves the fill stability.The following conditions
shall also apply:
1. Prior to issuance of the grading permit,
potential rock disposal areas shall be
delineated on the grading plan.
2.Rock sizes greater than 12 inches
(305nun) in maximum dimension shall be
10 feet (3048 mm) or more below grade,
measured vertically.
3. Rocks shall be placed so as to assure
filling of all voids with well -grade soil.
3313.4 Compaction. All fills shall be compacted to
a minimum of 90 percent of maximum density.
3313.5 Slope. The slope of fill surfaces shall be no
steeper than is safe for the intended use.Fill slopes
shall be no steeper than 1 unit vertical in 2 units
horizontal (50% slope).
SECTION 3314- SETBACKS
3314.1 General. Cut and fill slopes shall be set back
from site boundaries in accordance with this section.
.Setback dimensions shall be horizontal distance
measured perpendicular to the site boundary.
Setback dimensions shall be as shown in Figure A-
33-1.
3314.2 Top of Cut Slope. The top of cut slopes
shall not be made nearer to a site boundary line than
1997 Uniform Building Code
Excavation and Grading
Amended Appendix Chapter 33
one fifth of the vertical height of cut with a
minimum of 2 feet (610 mm) and a maximum of 10
feet (3048 nun). The setback may need to be
increased for any required interceptor drains.
3314.2 Top of Fill Slope. The toe of fill slope shall
be made not nearer to the site boundary line than one
half the height of the slope with a minimum of 2 feet
(610 mm) and a maximum of 20 feet (6096 mm).
Where a fill slope is to be located near the site
boundary and the adjacent off -site property is
developed, special precautions shall be incorporated
in the work as the building official deems necessary
to protect the adjoining property from damage as a
result of such grading.These precautions may
include but are not limited to:
1.Additional setbacks.
2.Provision for retaining or slough walls.
3.Mechanical or chemical treatment of the fill slope
surface to minimize erosion.
4.Provisions for the control of surface waters.
3314.4 Modification of Slope Location. The
building official or designee may approve alternate
setbacks.The building official or designee may
require an investigation and recommendation by a
qualified engineer or engineering geologist to
demonstrate that the intent of this section has been
satisfied.
SECTION 3315- DRAINAGE AND
TERRACING
3315.1 General.Unless otherwise indicated on the
approved grading plan, drainage facilities and
terracing shall conform to the provisions of this
section for cut or fill slopes steeper than 1 unit
vertical in 3 units horizontal (33.3% slope)
3315.2 Terrace. Terraces at least 6 feet (1829 mm)
in width shall be established at not more than 30-
foot(9144 mm) vertical intervals on all cut or fill
slopes to control surface drainage and debris except
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PAGE 8 of 10
that where only one terrace is required, it shall be at
midheight For cut or fill slopes greater than 60 feet
(18 288 mm) and up to 120 feet (36 576mm) in
vertical height, on terrace at approximately
midheight shall be 12 feet (3658 mm) in width.
Terrace widths and spacing for cut and fill slopes
greater than 120 feet (36 576 mm) in height shall be
designated by the civil engineer and approved by the
building official or designee.Suitable access shall
be provided to permit proper cleaning and
maintenance.
Swales or ditches on terraces shall have a minimum
gradient of 5 percent and must be paved with
reinforced concrete not less than 3 inches (76 mm)
in thickness or an approved equal paving.They
shall have a minimum depth at the deepest point of 1
foot (305 mm) and a minimum paved width of 5 feet
(1524 mm).
A single run of swale or ditch shall not collect runoff
form a tributary area exceeding 13,500 square feet
(1254.2 M2)(projected) without discharging into a
down drain.
3315.3 Subsurface Drainage.Cut and fill slopes
shall be provided with subsurface drainage as
necessary for stability.
3315.4 Disposal.All drainage facilities shall be
designed to carry waters to the nearest practicable
drainage way approved by the building official or
designee or other appropriate jurisdiction as a safe
place to deposit such waters.Erosion of ground in
the area of discharge shall be prevented by
installation of nonerosive down -drains or other
devices.
Building pads shall have a drainage gradient of 2
percent toward approved drainage facilities, unless
waived by the building official or designee.
EXCEPTION: The gradient from the building pad
may be 1 percent if all of the following conditions
exist throughout the permit area:
1.No proposed fills are greater than 10 feet
(3048 mm) in maximum depth.
2.No proposed finish cut or fill slope faces
have a vertical height in excess of 10 feet (3048
mm).
3.No existing slope faces steeper than 1
1997 Uniform Building Code
Excavation and Grading
Amended Appendix Chapter 33
unit vertical in 10 units horizontal (10% slope) have
a vertical height in excess of 10 feet (3048 mm).
3315.5 Interceptor Drains. Paved interceptor drains
shall be installed along the top of all cut slopes
where the tributary drainage area above slopes
toward the cut and has a drainage path greater than
40 feet (12 192 min) measured horizontally.
Interceptor drains shall be paved with a minimum of
3 inches (76 mm) of concrete or gunite and
reinforced. They shall have a minimum depth of 12
inches (305 mm) and a minimum paved width of 30
inches (762 mm) measured horizontally across the
drain.The slope of drain shall be approved by the
building official or designee.
3316.1 Slopes. The faces of cut and fill slopes shall
be prepared and maintained to control against
erosion.This control may consist of effective
planting.The protection for the slopes shall be
installed as soon as practicable and prior to calling
for final approval.Where cut slopes are not subject
to erosion due to the erosion -resistant character of
the materials, such protection may be omitted.
3315.2 Other Devices. Where necessary, check
dams, cribbing, riprap or other devices or methods
shall be employed to control erosion and provide
safety.
SECTION 3317- GRADING INSPECTION
3317.1 General. Grading operations for which a
permit is required shall be subject to inspection by
the building official or designee.Professional
inspection of grading operations shall be provided by
the civil engineer, soils engineer and the engineering
geologist retained to provide such services in
accordance with Section 3317.5 for engineered
grading and as required by the building official or
designee for regular grading.
3317.2 Civil Engineer. The civil engineer shall
provide professional inspection within such
engineer's area of technical specialty, which shall
consist of observation and review as to the
establishment of line, grade and surface drainage of
the development area.If revised plans are required
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PAGE 9 of 10
during the course of the work they shall be prepared
by the civil engineer.
3317.3 Soils Engineer. The soils engineer shall
provide professional inspection within such
engineer's area of technical specialty, which shall
include observation during grading and testing for
required compaction. The soils engineer shall
provide sufficient observation during the preparation
of the natural ground and placement and compaction
of the fill to verify that such work is being performed
in accordance with the conditions of the approved
plan and the appropriate requirements of this
chapter. Revised recommendations relating to
conditions differing from the approved soils
engineering and engineering geology reports shall be
submitted to the permittee, the building official or
designee and the civil engineer.
3317.4 Engineering Geologist. The engineering
geologist shall provide professional inspection
within such engineer's area of technical specialty,
which shall include professional inspection of the
bedrock excavation tó determine if conditions
encountered are in conformance with the approved
report. Revised recommendations relating to
conditions differing from the approved engineering
geology report shall be submitted to the soils
engineer.
3317.5 Permittee. The permittee shall be
responsible for the work to be performed in
accordance with the approved plans and
specifications and in conformance with the
provisions of this code, and the permittee shall
engage consultants, if required, to provide
professional inspections on a timely basis.The
permittee shall act as a coordinator between the
consultants, the contractor and the building official
or designee .In the event of changed conditions,
the permittee shall be responsible for informing the
building official or designee of such change and
shall provide revised plans for approval.
3317.6 Building official or designee . The building
official or designee shall inspect the project at the
various stages of work requiring approval to
determine that adequate control is being exercised by
1997 Uniform Building Code
Excavation and Grading
Amended Appendix Chapter 33
the professional consultants.
3317.7 Notification of Noncompliance. If, in the
course of fulfilling their respective duties under this
chapter, the civil engineer, the soils engineer or the
engineering geologist finds that the work is note
being done in conformance with this chapter or the
approved grading plans, the discrepancies shall be
reported immediately in writing to the pennittee and
to the building official or designee .
3317.8 Transfer of Responsibility. lithe civil
engineer, the soils engineer, or the engineering
geologist of record is changed during grading, the
work shall be stopped until the replacement has
agreed in writing to accept their responsibility within
the are of technical competence for approval upon
completion of the work.It shall be the duty of the
pennittee to notify the building official or designee
in writing of such change prior to the
recommencement of such grading.
SECTION 3318- COMPLETION OF WORK
3318.1 Final Reports. Upon completion of the
rough grading work and at the final completion of
the work, the following reports and drawings and
supplements thereto are required for engineered
grading or when professional inspection is
performed for regular grading, as applicable.
1.An as -built grading plan prepared by the
civil engineer retained to provide such services in
accordance with Section 3317.5 showing original
ground surface elevations, as -graded ground surface
elevations, lot drainage patterns, and the locations,
and elevations of surface drainage facilities and of
the outlets of subsurface drains.As -constructed
locations, elevations and details of subsurface drains
shall ve shown as reported by the soils engineer.
Civil engineer shall state that to the best of their
knowledge the work within their area of
responsibility was done is accordance with the final
approved grading plan.
2.A report prepared by the soils engineer
retained to provide such services in accordance with
Section 3317.3, including locations and elevations of
field density tests, summaries of field and laboratory
tests, other substantiating data, and comments on
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PAGE 10 of 10
any changes made during grading and their effect on
the recommendations made in the approved soils
engineering investigation report Soils engineers
shall submit a statement that, to the best of their
knowledge, the work within their area of
responsibilities is in accordance with the approved
soils engineering report and applicable provisions of
this chapter.
3.A report prepared by the engineering
geologist retained to provide such services in
accordance with Section 3317.5, including a final
description of the geology of the site and any new
information disclosed during the grading and the
effect of same on recommendations incorporated in
the approval grading plan. Engineering geologists
shall submit a statement that, in the best of their
knowledge, the work within their area of
responsibility is in accordance with the approved
engineering geologist report and applicable
provisions of this chapter.
4.The grading contractor shall submit in a
form prescribed by the building official or designee a
statement of conformance to said as -built plan and
the specifications.
3318.2 Notification of Completion. The permittee
shall notify the building official or designee when
the grading operation is ready for final inspection.
Final approval shall not be given until all work,
including installation of all drainage facilities and
their protective devices, and all erosion -control
measures have been completed in accordance with
the final approved grading plan, and the required
reports have been submitted.